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Swegon WCD2 Pacific Installation Manual
Swegon WCD2 Pacific Installation Manual

Swegon WCD2 Pacific Installation Manual

Condensation sensor

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WCD2 PACIFIC
Installation – Condensation sensor
20170918
2
1
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General description of the Condensation Sensor WCD2 Pacific
The Sensor WCD2 Pacific is designed to meet the requirements to provide early warning of condensing conditions.
In case of a problem with the system the sensor is used as a safeguard to avoid condensation from the chilled beam.
The sensor operates on dew point temperature rather than a fixed value of relative humidity.
The dew point is calculated from a temperature compensated RH element and a high accuracy thermistor which are
thermally bonded to the metal plate of the sensor.
The volt-free contact relay in the sensor is activated when the dew point temperature is below the calculated dew point
temperature (there is a safety factor included in the calculated dew point). NOTE: the sensor should be mounted on
incomming cooling water pipe and close to the coil.
LED Indication.
The red LED, visible through the top of the housing, has 4 functions.
1. Short blink once every 15 seconds to show the device is working properly
2. Rapid continuous blinking to show the dew point switching set point is close
3. Continuously ON when the output is switched on.
4. On long flash followed by 2 short flashes to show the temperature element is faulty.

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Summary of Contents for Swegon WCD2 Pacific

  • Page 1 General description of the Condensation Sensor WCD2 Pacific The Sensor WCD2 Pacific is designed to meet the requirements to provide early warning of condensing conditions. In case of a problem with the system the sensor is used as a safeguard to avoid condensation from the chilled beam.
  • Page 2 WCD2 PACIFIC To connect the condensation sensor on a cupper pipe. Note! The sensor should be mounted on the supply cooling water pipe as close as possible to the coil. Swegon reserves the right to alter specifications. 2017-09-18...
  • Page 3 To connect the condensation sensor on a connection nut (when PEX tubing is used). Note! The sensor should be mounted on the supply cooling water pipe as close as possible to the coil. 2017-09-18 Swegon reserves the right to alter specifications.
  • Page 4 WCD2 PACIFIC To connect condensation sensor WCD2 to PACIFIC with CONDUCTOR Green Condensation sensor Yellow WCD2 Blue Swegon reserves the right to alter specifications. 2017-09-18...
  • Page 5 WCD2 PACIFIC To connect condensation sensor WCD2 to PACIFIC with URC1 Green Condensation sensor Yellow WCD2 Blue 2017-09-18 Swegon reserves the right to alter specifications.
  • Page 6 To connect condensation sensor to PACIFIC with LUNA /CCO ~24 V AC 24 V AC 24 V AC Colour LUNA RE-S Colour Plinth Blue Condensation Blue Condensation sensor sensor Green WCD2 Green CONDENS Yellow WCD2 Yellow SENSOR Swegon reserves the right to alter specifications. 2017-09-18...